What is a2 Milk®?
a2 Milk® is pure and natural dairy milk. But unlike ordinary dairy milk, a2 Milk® is sourced from cows that have been genetically tested to confirm that they are cows with A2/A2-type genetics.
a2 Milk® has all the goodness of dairy milk but is naturally A1 protein free.
Understanding beta-casein protein in milk
Not all milk is the same. The key difference lies in the type of beta-casein protein your milk contains.
Dairy milk contains two main groups of proteins: casein and whey. Beta-casein is a form of casein protein that typically makes up about 30% of the total protein content in milk.
30% OF MILK PROTEIN
Beta-casein makes up about one-third of the protein in cow’s milk
12+ GENETIC VARIANTS
At least 12 known variants of beta-casein protein divided into A1 and A2-types
DIFFERENT EFFECTS
This difference affects how the beta-casein protein is digested
World-leading testing
At The a2 Milk Company, our beta-casein testing methods and processes have been developed to deliver accurate and reproducible results across our global supply chain through our testing partners.
Key Insight
A1 beta-casein protein in dairy milk is unique - the structure of the protein favours the release of opioid peptide BCM-7 when digested, something not seen in other types of milk proteins.